Writing, KSP (why else am I here?), Spaceflight (crewed and robotic), Astrobiology and the search for habitable exoplanets, Interplanetary travel and colonization, Interstellar travel, and watching or reading plenty of science fiction and fantasy.
I haven't found the budget though. If they're going for a full-blown futuristic setting, they'll need more than a few tens of millions to make things look nice :D